refactor: remove motionValue from roadmap as it is no longer a priority

Author: JonathonRP

ROADMAP.md

@@ -2,8 +2,10 @@
 
 motion-start is a Svelte 5 animation library ported from framer-motion. This roadmap captures the major feature work ahead, ordered roughly by priority and dependency.
 
-motionValue - participate in svelte reactivity (.current).
+~~motionValue - participate in svelte reactivity (.current).~~
+
 use svelte ease for easing/custom easing?
+
 use svelte effect instead of RAF in batcher or compeletely replace frame with runed AnimationFrame.
 
 is there a way to allow raw component work with $effects without using svelte template? because svelte allows getting and setting context in raw function components in newer versions.